Year	% of total secondary
2012	0
2013	0.0136099997907877
2014	0.0407800003886223
2015	0.0366499982774258
2016	0.0543700009584427
2017	0.0644799992442131
2018	0.0887999981641769
2019	0.14622999727726
2020	0.246539995074272
2021	0.39495000243187
2022	0.314630001783371